EP3221149A1 - Verfahren und vorrichtung zum bedrucken einer oberfläche mit einem fluid - Google Patents
Verfahren und vorrichtung zum bedrucken einer oberfläche mit einem fluidInfo
- Publication number
- EP3221149A1 EP3221149A1 EP15784577.7A EP15784577A EP3221149A1 EP 3221149 A1 EP3221149 A1 EP 3221149A1 EP 15784577 A EP15784577 A EP 15784577A EP 3221149 A1 EP3221149 A1 EP 3221149A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- reservoir
- printing
- supply line
- return line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 141
- 238000007639 printing Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000004065 semiconductor Substances 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 22
- 238000007872 degassing Methods 0.000 claims description 18
- 238000011109 contamination Methods 0.000 description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005442 molecular electronic Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17563—Ink filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
Definitions
- the invention relates to a method of printing a surface with a fluid containing an organic semiconductor material, wherein the fluid from a reservoir is conveyed through a feed line to a surface-traveling printhead and imprinted onto the surface by the printhead.
- organic semiconductor materials are combined with electronic components in order to create the advantageous properties of the organic semiconductor material in the electronic field
- organic light-emitting diodes OLEDs
- large-area displays can be produced from organic light-emitting diode arrangements.
- Organic semiconductor materials also have advantageous properties and uses in processing capabilities and in the fabrication of electronic devices with organic semiconductor materials.
- organic semiconductor materials can be dissolved in a fluid and processed by printing technology, wherein, in particular with suitably modified inkjet systems dissolved in a fluid organic semiconductor material without contact on a large area to be printed surface
- the organic semiconductor material has a very high degree of purity and contains as few disturbing foreign particles or air pockets.
- most organic semiconductor materials that have inherent beneficial properties for the manufacture of products and that are used therefor are extremely sensitive to contact with oxygen and air.
- the organic semiconductor material is often filled under high-purity environmental conditions in storage, then placed in gas-tight storage containers to the place of use and there shielded as possible from contaminating particles or gases and in particular processed by oxygen.
- This object is achieved in that at least a portion of the fluid which is conveyed through the supply line to the print head, is fed back via a return line into the reservoir, wherein a fluid circuit is formed, and that the fluid in the fluid circuit a cleaning device flows through, with which the fluid is purified.
- the formation of the fluid circuit which comprises a cleaning device, makes it possible to optionally flow the fluid in the reservoir several times through the cleaning device and thereby to allow it to be cleaned.
- This cleaning of the fluid can be carried out immediately before the use of the fluid or before the beginning of a printing operation. It is no longer necessary to clean the fluid before filling into the reservoir with considerable effort and additionally ensure that during transport of the reservoir from the place of manufacture to the intended use any renewed
- the printing apparatus with which the printing operation is performed may lower the purity of the components involved and the shielding of the fluid before and during the printing process Requirements than before, as needed and
- Printing fluid provided promoted by device and thereby can be cleaned.
- the fluid conveyed back to the reservoir flows around the fluid conveyed in the supply line to the print head at least in sections.
- Many organic semiconductor materials that are suitable, for example, for the production of large-area displays, can involuntarily quickly with
- Oxygen contaminated which is absorbed from the environment or penetrates into the fluid.
- many components of the printing device are designed and made of suitable materials such as stainless steel that a penetration or a
- Printhead is conveyed, it can be difficult and possibly largely avoided that the fluid conveyed back to the reservoir completely surrounds the supply line at least partially, so that from the environment into the fluid lines penetrating oxygen substantially only in the return line and thus in the Reservoir again pumped back fluid can penetrate.
- the return line which is the supply line surrounds, forms an additional shield and the function lock for the supply line surrounding the return line.
- the fluid returned back through the recycle line may be precautionary or, if necessary, cleaned prior to refeeding to the printhead to reduce any contamination.
- the reservoir is fixedly arranged at a distance from the surface and via a flexible supply line and a flexible
- Return line is connected to the reservoir connected printhead for printing on the surface is moved. Due to the possibility of circulating the fluid in a fluid circuit and thereby with the in the
- Printing device or can be reduced in the fluid circuit during the printing process by means of the cleaning device. It is not necessary to arrange the reservoir directly on or on the print head and during the printing process together with the
- the reservoir can be arranged stationarily at a distance to the surface to be printed.
- the connection of the reservoir to the print head is made possible via a flexible supply line and a flexible return line. With the return line surrounding the supply line, the flexible supply line is additionally shielded. If necessary, a contamination of the fluid which may be favored by a longer residence time in the supply line can be reduced again by conveying the fluid through the return line and through the cleaning device.
- the spaced and stationary arranged reservoir can be a considerably larger
- the fluid in the cleaning device is conveyed through a degassing device and through a particle filter device.
- a degassing device can unwanted gas contamination and especially one for the organic
- the particulate filter device With the particulate filter device, particles can be filtered out of the fluid which, for example, detach from the reservoir or components of the pressure device during transport or during a prolonged storage and contaminate the fluid.
- the particle filter device may in turn be designed in multiple stages or have a plurality of different filter components in order to detect increasingly finer particles and to be able to filter them out of the fluid flow. It is also conceivable that, for example, with low demands on the purity of the printhead
- the fluid is conveyed only by a degassing or only by a particle filter device before the fluid is supplied to the print head and printed with the print head on the surface to be printed.
- the invention provides that the fluid in the fluid circuit is conveyed through an analysis device and an analysis of the fluid is carried out , With the analysis device suitable parameters for the fluid can be determined and, for example, the purity of the fluid that is conveyed by the analysis device can be determined.
- the analysis device is expediently arranged in the flow direction after the cleaning device, so that the performed with the analysis device
- the analysis device can be connected to a memory device, for example, before the start of a printing process or
- a use of the print head for printing on the surface is enabled or disabled.
- the print head may be disabled for printing and the fluid conveyed through the fluid circuit to effect cleaning of the fluid in the cleaner.
- the analyzes can be continued and the cleaning of the fluid already effected with the cleaning device can be checked before the print head is released again for printing on the surface.
- the invention also relates to a device for printing a
- a surface containing a fluid containing an organic semiconductor material comprising a reservoir for the fluid, a print head movable over the surface to be printed for printing the surface with the fluid, and a supply line with which the fluid from the reservoir to the print head can be promoted.
- the device a
- Printhead funded fluid can be fed back into the reservoir, with the return line together with the supply line, a fluid circuit can be formed, and that the device comprises a cleaning device for the fluid, which is arranged in the fluid circuit and can be flowed through by the fluid.
- the return line completely surrounds at least a portion of the supply line in the circumferential direction.
- Return line can be designed at least partially hollow cylindrical and concentric in an interior of the
- the return line may surround and shield the supply line substantially completely the entire length of the supply line. It is also conceivable that the return line surrounds the supply line only along a section or in particularly exposed areas.
- the supply line and the return line are at least partially flexible and between the stationary storage container and the
- the reservoir can be separated and shielded, for example, by a housing wall or by a room wall of the movable print head and the surface to be printed, so that a replacement of the reservoir is possible without affecting the ambient conditions in the immediate vicinity of the surface to be printed.
- the volume of the reservoir spaced from the printhead may be several liters or more.
- the stationary arranged reservoir can be provided with suitable quick-release connections and replaced quickly. It is also conceivable that a plurality of storage containers are provided, which can be put into operation alternately. After the complete emptying of a first reservoir can be switched and a second reservoir can be used, so that a printing process can be continued quickly.
- Reservoir can be refilled or replaced with a refilled reservoir. In this way, a large number of printing operations can be performed almost uninterrupted.
- the cleaning device expediently has a
- Degassing device and a particulate filter device.
- Components comprising degassing device and particulate filter device can be arranged outside of the reservoir. It is also conceivable that the degassing and the
- Particle filter means are integrated in the reservoir and exchanged together with the reservoir and can be regenerated, for example, in a refilling of the reservoir.
- the cleaning device may have only one degassing device or only one particle filter device if degassing or filtering of the fluid is considered to be unnecessary or disproportionately cost-intensive. It is also possible that the degassing device or the particle filter device is not a permanent component of the
- Cleaning device and are integrated only when needed in the circulation or in the reservoir for the fluid.
- the apparatus may further comprise an analyzer for analyzing the fluid.
- an analyzer for analyzing the fluid.
- Printhead release device is connected to signal transmitting, the printhead can be released for an upcoming printing process or locked, if necessary for a printing operation
- Analysis device with the control device can transmit analysis results to the control device and in dependence on the
- Both the analysis device and the control device can be arranged in the reservoir or integrated into it.
- the reservoir only needs to have connections for connection to the supply line and the return line in order to connect to the printhead.
- the fluid in the reservoir can be conveyed through the fluid circuit and analyzed. If the analyzes indicate that the fluid is not of the required purity, printhead release be denied to first perform an additional cleaning of the fluid. Once the required purity is detected with the analyzer, the printhead can be released and pending printing started.
- the cleaning and control of a printing process can be self-sufficient in this way with the help of a suitably designed reservoir
- the provision of the fluid with an organic semiconductor material is usually carried out organisationally and spatially separated from the
- FIG. 1 shows a schematic representation of a device for printing on a surface, in which a storage container is arranged at a distance from a surface movable print head and connected to the movable print head with a flexible supply line and a flexible return line,
- FIG. 2 shows a schematic illustration of an embodiment of the flexible supply line and the flexible return line surrounding the feed line
- FIG. 3 is a schematic representation of a storage container in which a cleaning device and an analysis device are integrated and FIG. 4 is a schematic representation of a portion of the
- FIG. 1 A schematically illustrated in Fig. 1 apparatus 1 for printing a surface 2 has a movable over the surface 2 printhead 3. From a pressure nozzle 4 of the print head 3, a fluid on the
- the print head 3 is connected via a flexible supply line 5 and a likewise flexible return line 6 with a spaced from the surface 2 arranged reservoir 7 is connected.
- the reservoir 7 is arranged stationary.
- the flexibly configured supply line 5 and the also flexibly configured return line 6 allow a connection of the movable print head 3 to the stationary arranged êtrats everer. 7
- a control valve 8 is arranged, with which the above the feed line 5 the printhead 3 listed fluid can either be sprayed through the pressure nozzle 4 on the surface 2, or the fluid is fed into the return line 6 to back in the reservoir 7 to be promoted.
- the supply line 5 and the return line 6 form a Fluidl re run.
- a pump 9 is arranged, with which the fluid from the reservoir 7 can be conveyed to the DrucWcopf 3 out.
- the control valve 8 blocks the pressure nozzle 4 and the conveyed via the supply line 5 in the print head 3 fluid in the
- a degassing device 10 and a particle filter device 1 are further arranged, with which the fluid conveyed through the supply line 5 cleaned wiird. Both particles are filtered out and unwanted gas contamination of the fluid is reduced.
- Fig. 2 is an advantageous embodiment of the invention
- Return line 6 is designed as a hollow cylinder and surrounds concentrically arranged in an interior of the Hohlzylirid ers
- Feed line 5 The arrows show exemplary flow directions of the fluid in the feed line 5 and in the return line. line 6 indicated.
- the return line 6 surrounds the supply line 5 in the circumferential direction completely and forms a shield of the supply line 5 from the environment.
- a contamination, which is almost unavoidable in particular when flexible conduit materials are used, of the fluid in the supply line 5 or in the return line 6 is thereby largely concentrated and limited to contamination of the fluid in the return line 6, which is introduced into the reservoir 7
- Particle filter device 11 may each be formed in multiple stages or each having a plurality of components.
- the degassing device 10 and the particle filter device 11 form a cleaning device 12 for the fluid flowing through.
- Fig. 3 is merely an example of a differently designed
- Reservoir 7 is arranged. Furthermore, an analysis device 14 with a control device 15 in the interior 13 of the reservoir 7 is arranged. The funded with the pump 9 in the supply line 5 and to the print head 3 towards the fluid is discharged from the interior 13 of the
- Reservoir 7 first funded by the cleaning device 12 and then by the analysis device 14 before it can get into the feed line 5 and to the print head 3. In this case, following the purification of the fluid, an analysis with the
- Analyzer 14 performed.
- the result of the analysis can be transmitted by means of the control device 15 to the control valve 8 of the print head 3 to the printhead 3 for a printing operation to release or to block in order to direct the conveyed through the supply line 5 to the printhead 3 fluid in the return line 6 and again supply the reservoir 7 for a new cleaning.
- FIG. 4 schematically shows a partial region of a deviating variant of the device 1.
- the supply line 5 and the return line 6 are connected via a three-way valve 16 optionally with one of two storage containers 7. While one of the two reservoir 7 is connected to the print head 3 for the execution of printing operations, the other Vorratsbe older 7
- Reservoir 7 is running low, can be switched with the three-way valve 16 and filled with new fluid other reservoir 7 continue to be used. In this way, the downtime during operation of the device 1 can be significantly reduced.
- the cleaning device 12 and the analysis device 14 are arranged externally in this embodiment and not in the
- Storage tank 7 integrated.
- the control device 15 connected to the analysis device 14 can wirelessly transmit control information to the
- the pump 9 can be arranged.
- the pump 9 can also be arranged in the flow direction before the cleaning device 12 or, if appropriate, between the cleaning device 12 and the analysis device 14. It is also possible to arrange the cleaning device 12 and possibly also the analysis device 14 in the return line 6.
Landscapes
- Coating Apparatus (AREA)
- Ink Jet (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014017223.6A DE102014017223A1 (de) | 2014-11-21 | 2014-11-21 | Verfahren und Vorrichtung zum Bedrucken einer Oberfläche mit einem Fluid |
| PCT/EP2015/002113 WO2016078739A1 (de) | 2014-11-21 | 2015-10-23 | Verfahren und vorrichtung zum bedrucken einer oberfläche mit einem fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3221149A1 true EP3221149A1 (de) | 2017-09-27 |
| EP3221149B1 EP3221149B1 (de) | 2019-10-02 |
Family
ID=54347479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15784577.7A Active EP3221149B1 (de) | 2014-11-21 | 2015-10-23 | Verfahren und vorrichtung zum bedrucken einer oberfläche mit einer flüssigkeit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10821740B2 (de) |
| EP (1) | EP3221149B1 (de) |
| JP (1) | JP6615885B2 (de) |
| KR (1) | KR102455659B1 (de) |
| CN (1) | CN107000441B (de) |
| DE (1) | DE102014017223A1 (de) |
| WO (1) | WO2016078739A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016012574A1 (de) * | 2016-10-21 | 2018-04-26 | Merck Patent Gmbh | Verfahren zum Betreiben einer Druckvorrichtung und Druckvorrichtung |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3529626A (en) * | 1968-05-31 | 1970-09-22 | Aro Corp | Recirculating hose assembly |
| US4403227A (en) | 1981-10-08 | 1983-09-06 | International Business Machines Corporation | Method and apparatus for minimizing evaporation in an ink recirculation system |
| US5060861A (en) * | 1988-08-29 | 1991-10-29 | Hose Specialties, Capri, Inc. | Coaxial paint hose and supply system |
| JPWO2002090117A1 (ja) | 2001-05-09 | 2004-08-19 | 松下電器産業株式会社 | インクジェット装置、インクジェットインキ及びそれを用いた電子部品の製造方法 |
| JP2002370374A (ja) | 2001-06-18 | 2002-12-24 | Canon Inc | インクジェットプリント装置、プリントヘッドおよびインク供給方法 |
| JP2003159786A (ja) * | 2001-11-28 | 2003-06-03 | Seiko Epson Corp | 吐出方法およびその装置、電気光学装置、その製造方法およびその製造装置、カラーフィルタ、その製造方法およびその製造装置、ならびに基材を有するデバイス、その製造方法およびその製造装置 |
| KR20080104508A (ko) | 2007-05-28 | 2008-12-03 | 삼성전자주식회사 | 잉크젯 화상형성장치 |
| JP2010069669A (ja) | 2008-09-17 | 2010-04-02 | Fujifilm Corp | 液滴吐出装置 |
| JP4869373B2 (ja) * | 2009-03-25 | 2012-02-08 | 株式会社東芝 | 液体循環ユニット、液体循環装置、液滴噴射塗布装置、及び塗布体の形成方法 |
| JP2010264689A (ja) * | 2009-05-15 | 2010-11-25 | Riso Kagaku Corp | インクジェット記録装置及びインクジェット記録方法 |
| CN102049900A (zh) | 2009-10-27 | 2011-05-11 | 鸿富锦精密工业(深圳)有限公司 | 喷墨打印机 |
| JP5685467B2 (ja) * | 2010-09-16 | 2015-03-18 | 富士フイルム株式会社 | パターン形成方法及びパターン形成装置 |
| JP5530896B2 (ja) | 2010-10-27 | 2014-06-25 | 東芝テック株式会社 | インクジェットヘッド及び印字装置 |
| JP5621560B2 (ja) * | 2010-12-03 | 2014-11-12 | 富士ゼロックス株式会社 | 緩衝装置、液体供給装置、及び液滴吐出装置 |
| JP2012254553A (ja) | 2011-06-08 | 2012-12-27 | Seiko Epson Corp | 液体噴射装置 |
| EP2764558B1 (de) | 2011-10-06 | 2019-02-27 | Merck Patent GmbH | Organische elektrolumineszenzvorrichtung |
| JP2013252506A (ja) * | 2012-06-08 | 2013-12-19 | Panasonic Corp | デバイスの製造装置、及びデバイスの製造方法 |
| US8926077B2 (en) * | 2013-02-26 | 2015-01-06 | Inx International Ink Company | Ink supply system for ink jet printers |
-
2014
- 2014-11-21 DE DE102014017223.6A patent/DE102014017223A1/de not_active Withdrawn
-
2015
- 2015-10-23 WO PCT/EP2015/002113 patent/WO2016078739A1/de not_active Ceased
- 2015-10-23 US US15/527,936 patent/US10821740B2/en active Active
- 2015-10-23 KR KR1020177017014A patent/KR102455659B1/ko active Active
- 2015-10-23 EP EP15784577.7A patent/EP3221149B1/de active Active
- 2015-10-23 CN CN201580062685.5A patent/CN107000441B/zh active Active
- 2015-10-23 JP JP2017527627A patent/JP6615885B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20180345676A1 (en) | 2018-12-06 |
| JP2018505039A (ja) | 2018-02-22 |
| DE102014017223A1 (de) | 2016-05-25 |
| WO2016078739A1 (de) | 2016-05-26 |
| CN107000441A (zh) | 2017-08-01 |
| KR102455659B1 (ko) | 2022-10-18 |
| CN107000441B (zh) | 2018-12-28 |
| JP6615885B2 (ja) | 2019-12-04 |
| US10821740B2 (en) | 2020-11-03 |
| EP3221149B1 (de) | 2019-10-02 |
| KR20170086616A (ko) | 2017-07-26 |
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